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Round|Natural|GIA

1.30ct D SI1 Round Natural Diamond

EX • D/SI1

Diamond specifications and retailer prices

From £4,593 GBP
As of November 5, 2026
Save £3,363 GBP (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,956 GBP at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 13 retailers as of November 4, 2026, with prices from £4,593 to £7,956, a £3,363 spread on the same certified stone. Wholesale Diamonds Direct lists it at £7,956. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions6.94 × 7.00 × 4.29 mm
L/W Ratio1.01
Top View
6.94 mm7.00 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £5,088 GBP|Low: £4,593 GBP|High: £7,956 GBP|Avg: £5,825 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 8£4,593 GBP
Retailer 7£4,685 GBP
Retailer 6£5,063 GBP
Retailer 1£5,088 GBP
Retailer 5£5,325 GBP
Retailer 9£5,425 GBP
Retailer 3£5,956 GBP
Retailer 2£6,694 GBP
Retailer 4£7,626 GBP
Wholesale Diamonds Direct£7,956 GBP

40 data points across 10 retailers

13 retailers£4,593 GBP to £7,956 GBP

B+
Cheapest Retailer
-
£4,593 GBP
B+
Retailer 2
-
£4,685 GBP
View
Retailer 3
-
£5,063 GBP
View
Price last confirmed 21 days ago
B
Retailer 4
-
£5,063 GBP
View
B+
Retailer 5
-
£5,088 GBP
View
Retailer 6
-
£5,181 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£5,325 GBP
View
Price last confirmed 15 days ago
Retailer 8
-
£5,380 GBP
View
Price last confirmed 33 days ago
B
Retailer 9
-
£5,425 GBP
View
B
Retailer 10
-
£5,956 GBP
View
B
Retailer 11
-
£6,694 GBP
View
B
Retailer 12
-
£7,626 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
385323462 · Nov 4
£7,956 GBP
$10,708 USD
View
12 more retailers have this diamond
Prices start from £4,593 GBPSave up to £3,363 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.30ct Round
£4,593 GBP